Electronics Forum | Tue May 29 16:52:07 EDT 2001 | hussman
By far the easiest way is to track solder paste measurement on your board - or solder defects after reflow (key word- easiest). Why spend 2 weeks examining a stencil when it clearly doesn't make defects, or IS making defects. I find using 2-D data
Electronics Forum | Thu Dec 16 11:27:39 EST 1999 | C.K.
Hey Folks: I just want to get an idea how many of you use in-line or off-line visual inspection for solder paste deposition? At my company, we have one off-line, and it inspects for paste height. It's not always consistent either. Sometimes, it g
Electronics Forum | Thu Mar 20 18:30:55 EDT 2008 | cmckissick
Does anybody have any reasonable experience with an in-line Solder Paste Inspector that actually is inspecting 3-D solder paste? Does the information that you get provide any reasonable data on process control (not just pass/fail) that would justify
Electronics Forum | Fri Dec 17 16:07:07 EST 1999 | Alex B
Hi, C.K. Let's assume that your stencil's thickness is in a range 4-6 mil or by other words the height of the solder paste on a pads is the same (close enough to reality) Therefore, for pad's width more than 20 mils(as well as pitch between pads) th
Electronics Forum | Wed Jun 08 13:41:56 EDT 2011 | swag
Two thoughts from me: 1)Are you sure the balls are collapsed? Have you looked at the perimeter from the side with a scope? From your x-ray, it appears you are correct in saying they are collapsed as the balls get smaller in a uniform fashion as you
Electronics Forum | Fri Oct 29 15:43:43 EDT 2004 | glaucon
Forgot details: Use a sample product that you will be running in production. Let each Equipment vendor run a test to meet your requirements. Often with each of these machines (MPM/DEK/EKRA) the key machine features are: -2D Inspection (for minimiz
Electronics Forum | Tue Apr 10 12:56:23 EDT 2001 | slthomas
Didn't you hear? Fendelaz went out of business and sold the rights to the Magnaplancil to Amahlmahay. Sure, all the standard variables still affect the print quality (aka registration and volume) but if the machine controls everything but paste di
Electronics Forum | Mon Jun 11 09:15:46 EDT 2007 | rgduval
Steve, I'm trying to. I don't like the manual printing, in general...it works for us with short runs, etc...but, in general, I don't like the non-repeatability of manual printing. If the right deal comes up, I may be able to justify it. In that c
Electronics Forum | Sat Jun 12 10:23:18 EDT 1999 | Dean
| How are you inspecting pcbs post-reflow, are you inspecting all or sampling. The type of assembly involved would be mainly chip components with a mix of actives and a few 25mil and under pitch. | If you sample what are your fault rates looking lik
Electronics Forum | Mon May 07 09:46:15 EDT 2001 | orbotech
3D imaging refers to the acquisition of images from multiple perspectives using, preferably, multiple sources of illumination, while 2D imaging refers to the acquisition of an image from one perspective. An AOI system with 3D imaging is able to acq
